Industrial processes, especially those involving the burning of fossil fuels, are the primary source of sulfur dioxide emissions.

All of the listed options contribute significantly to water pollution, affecting aquatic life and human health.

Metallic solids are primarily held together by metallic bonding, which involves a 'sea of electrons' that are free to move.

Bioremediation is primarily used to clean up environmental pollutants using microorganisms.

Boron is primarily used in the production of glass and ceramics.

Calcium carbonate is commonly used in antacids to neutralize stomach acid.

CRISPR technology is primarily used for gene editing, allowing precise modifications to DNA sequences.

Glycerol is commonly used as a sweetener in food products due to its sweet taste and ability to retain moisture.

Insulin produced through recombinant DNA technology is primarily used to treat diabetes by regulating blood sugar levels.

Lithium is primarily used as an anode material in lithium-ion batteries due to its high electrochemical potential.

Magnesium is primarily used in the aerospace industry due to its lightweight and strength.

Magnesium is primarily used in construction and aerospace industries due to its lightweight and strength.

Sodium bicarbonate is used in baking, cleaning, and medicine, making it versatile.

Sulfuric acid is primarily used in the production of fertilizers.

Sulfuric acid is primarily used as battery acid in lead-acid batteries.

Titanium dioxide (TiO2) is primarily used as a white pigment in paints and coatings.

The principal quantum number (n) indicates the energy level; for the third energy level, n = 3.

Chlorine has an atomic number of 17, and its outermost electrons are in the 3rd shell, so n=3.

Potassium has an atomic number of 19, and its outermost electron is in the n=4 shell.

Chlorine has an atomic number of 17, and its outermost electrons are in the n=3 shell.

A manometer is used to measure the pressure difference between two points in a fluid.

A photodiode operates on the principle of the photoelectric effect, where light generates electron-hole pairs.

The principle behind a thermos flask is insulation, which minimizes heat transfer.

A lever operates on the principle of mechanical advantage, allowing a smaller force to lift a larger load.

A hydraulic lift operates based on Pascal's law, which states that pressure applied to a confined fluid is transmitted undiminished in all directions.

A galvanometer works on the principle of the magnetic force acting on a current-carrying conductor placed in a magnetic field.

Bernoulli's Principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure.

Archimedes' Principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.

Bernoulli's Principle states that an increase in the velocity of a fluid occurs simultaneously with a decrease in pressure.

The probability of obtaining a homozygous recessive offspring (aa) from a cross between two heterozygous parents (Aa x Aa) is 25%.